3.71 x 10^5 + 4.65 x 10^5

= 8.36 x 10^5

could u show me the steps

Sure!

3.71 x 10^5 + 4.65 x 10^5

Step 1: Add the coefficients (numbers in front of the powers of 10):
3.71 + 4.65 = 8.36

Step 2: Keep the same power of 10:
The common power of 10 is 10^5

Combine the coefficient and keep the power of 10:
8.36 x 10^5

So, 3.71 x 10^5 + 4.65 x 10^5 = 8.36 x 10^5